Opel Astra - lamp illuminates sporadically | HELLA

Opel

Astra G model year: 2003

Astra H model year: 2004 - 2007 engine code: Z16XEP

Vectra C model year: 2006 - 2008 engine code: Z16XEP

Meriva model year: 2006 - 2010 engine code: Z16XEP

Zafira B model year: 2005 - 2007 engine code: Z16XEP

Insufficient engine power malfunction indicator lamp illuminates sporadically

Complaints about insufficient engine power have been received with respect to the aforementioned vehicles.

MIL (malfunction indicator lamp) illuminates sporadically, in addition the following fault codes are set.

· P0171 (air / fuel ratio lean)

· P0300 (misfire on multiple cylinders detected)

· P0303 (cylinder 3 - misfire detected)

· P1300 (EOBD error due to empty tank)

The cause of the aforementioned problem can be a dirty EGR valve (exhaust gas recirculation valve) (figure 1 / 2) and/or an EGR channel that is blocked with impurities

(figure 3) in the intake manifold.

Remedy:

  • Release the plug connection and remove the EGR valve
  • Check the EGR valve and replace if necessary
  • Remove the intake manifold
  • Check EGR channels for impurities and clean if necessary (use a suitable tool)
  • Install the intake manifold
  • Carry out a test drive
  • Read the faults using a diagnostic unit and delete them if necessary

Figure 1

Figure 2

Figure 3

Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.

Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.

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